Major fixes and new features

venv/lib/python3.12/site-packages/asyncpg/protocol/codecs/textutils.pyx

@@ -0,0 +1,99 @@
+# Copyright (C) 2016-present the asyncpg authors and contributors
+# <see AUTHORS file>
+#
+# This module is part of asyncpg and is released under
+# the Apache 2.0 License: http://www.apache.org/licenses/LICENSE-2.0
+
+
+cdef inline uint32_t _apg_tolower(uint32_t c):
+    if c >= <uint32_t><Py_UCS4>'A' and c <= <uint32_t><Py_UCS4>'Z':
+        return c + <uint32_t><Py_UCS4>'a' - <uint32_t><Py_UCS4>'A'
+    else:
+        return c
+
+
+cdef int apg_strcasecmp(const Py_UCS4 *s1, const Py_UCS4 *s2):
+    cdef:
+        uint32_t c1
+        uint32_t c2
+        int i = 0
+
+    while True:
+        c1 = s1[i]
+        c2 = s2[i]
+
+        if c1 != c2:
+            c1 = _apg_tolower(c1)
+            c2 = _apg_tolower(c2)
+            if c1 != c2:
+                return <int32_t>c1 - <int32_t>c2
+
+        if c1 == 0 or c2 == 0:
+            break
+
+        i += 1
+
+    return 0
+
+
+cdef int apg_strcasecmp_char(const char *s1, const char *s2):
+    cdef:
+        uint8_t c1
+        uint8_t c2
+        int i = 0
+
+    while True:
+        c1 = <uint8_t>s1[i]
+        c2 = <uint8_t>s2[i]
+
+        if c1 != c2:
+            c1 = <uint8_t>_apg_tolower(c1)
+            c2 = <uint8_t>_apg_tolower(c2)
+            if c1 != c2:
+                return <int8_t>c1 - <int8_t>c2
+
+        if c1 == 0 or c2 == 0:
+            break
+
+        i += 1
+
+    return 0
+
+
+cdef inline bint apg_ascii_isspace(Py_UCS4 ch):
+    return (
+        ch == ' ' or
+        ch == '\n' or
+        ch == '\r' or
+        ch == '\t' or
+        ch == '\v' or
+        ch == '\f'
+    )
+
+
+cdef Py_UCS4 *apg_parse_int32(Py_UCS4 *buf, int32_t *num):
+    cdef:
+        Py_UCS4 *p
+        int32_t n = 0
+        int32_t neg = 0
+
+    if buf[0] == '-':
+        neg = 1
+        buf += 1
+    elif buf[0] == '+':
+        buf += 1
+
+    p = buf
+    while <int>p[0] >= <int><Py_UCS4>'0' and <int>p[0] <= <int><Py_UCS4>'9':
+        n = 10 * n - (<int>p[0] - <int32_t><Py_UCS4>'0')
+        p += 1
+
+    if p == buf:
+        return NULL
+
+    if not neg:
+        n = -n
+
+    num[0] = n
+
+    return p